Loading the Recently Selected Value in the Combobox

Shankar M

Hi Experts,

I need your assistance, I need to load the last recently Selected value in the combobox
every time when I load the Form.

1. I have added the Items to the Combobox.

<-Select->
ABAP
SAP
Oracle
SQL Server

2. Initially when I load the Form, the combo box will be empty and I will give select "SQL Server".
3. Once after exiting the form, when I load again the combobox is empty.

But, It should have the Selected Text "SQL Server" as that was the last recently selected form the combo box.

Help me to solve this. Anyhelp appreciated.

Thanks in Advance.

5 Replies

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Vulpes13y ago
Accepted answer
In that case, I'd create a 'user' setting for the last combobox selected index (initially 0).

You can then load this setting when the form opens and change and save it when the form closes.

If you're not familiar with settings files, I'd check out this MSDN link:

http://msdn.microsoft.com/en-us/library/aa730869(VS.80).aspx
Shankar M13y ago
Yes Vulpes, Great.. I tried some examples of Saving the Present Setting to the Settings File.
Thanks alot.
Shankar M13y ago
Not in the same session Vulpes :-(
Dorababu Meka13y ago
Shankar there is no direct solution for that, you need to maintain a table for that
Vulpes13y ago
If you're talking about reloading the form during the same application session, then you need to save the last selected value to a global variable when the form closes and then load it again when the form is reopened:

// in program.cs

static class Program
{
internal static int LastCBIndex;

// rest of code
}

// in SomeForm.cs

private void SomeForm_Load(object sender, EventArgs e)
{
comboBox1.SelectedIndex = Program.LastCBIndex;
}

private void SomeForm_FormClosed(object sender, FormClosedEventArgs e)
{
Program.LastCBIndex = comboBox1.SelectedIndex;
}

If you want to maintain the last selected value across application sessions, then you'll need to save it to a 'settings' file rather than a global variable.